<script setup lang="js">
import {computed, onBeforeUnmount, onMounted, reactive, ref, toRaw, watch} from "vue";
import {useI18n} from "vue-i18n";
import Motion from "./utils/motion";
import {useRouter} from "vue-router";
import {message} from "@/utils/message";
import {loginRules} from "./utils/rule";
import {useNav} from "@/layout/hooks/useNav";

import {transformI18n} from "@/plugins/i18n";
import {useLayout} from "@/layout/hooks/useLayout";
import {useUserStoreHook} from "@/store/modules/user";
import {getTopMenu, initRouter} from "@/router/utils";
import {bg, illustration} from "./utils/static";
import {useRenderIcon} from "@/components/ReIcon/src/hooks";
import {useTranslationLang} from "@/layout/hooks/useTranslationLang";
import {useDataThemeChange} from "@/layout/hooks/useDataThemeChange";

import dayIcon from "@/assets/svg/day.svg?component";
import darkIcon from "@/assets/svg/dark.svg?component";
import Lock from "@iconify-icons/ri/lock-fill";
import Check from "@iconify-icons/ep/check";
import User from "@iconify-icons/ri/user-3-fill";

defineOptions({
  name: "Login"
});

const imgCode = ref("");
const router = useRouter();
const loading = ref(false);
const checked = ref(false);
const ruleFormRef = ref();
const currentPage = computed(() => {
  return useUserStoreHook().currentPage;
});

const {t} = useI18n();
const {initStorage} = useLayout();
initStorage();
const {dataTheme, dataThemeChange} = useDataThemeChange();
dataThemeChange();
const {title, getDropdownItemStyle, getDropdownItemClass} = useNav();
const {locale, translationCh, translationEn} = useTranslationLang();

const ruleForm = reactive({
  username: "admin",
  password: "admin123",
  verifyCode: ""
});

const onLogin = async (formEl) => {
  loading.value = true;
  if (!formEl) return;
  await formEl.validate((valid, fields) => {
    if (valid) {
      useUserStoreHook()
          .loginByUsername({username: ruleForm.username, password: "admin123"})
          .then(res => {
            if (res.success) {
              // 获取后端路由
              initRouter().then(() => {
                router.push(getTopMenu(true).path);
                message("登录成功", {type: "success"});
              });
            }
          });
    } else {
      loading.value = false;
      return fields;
    }
  });
};

/** 使用公共函数，避免`removeEventListener`失效 */
function onkeypress({code}) {
  if (code === "Enter") {
    onLogin(ruleFormRef.value);
  }
}

onMounted(() => {
  window.document.addEventListener("keypress", onkeypress);
});

onBeforeUnmount(() => {
  window.document.removeEventListener("keypress", onkeypress);
});

watch(imgCode, value => {
  useUserStoreHook().SET_VERIFYCODE(value);
});
</script>

<template>
  <div class="select-none">
    <img :src="bg" class="wave" />
    <div class="flex-c absolute right-5 top-3">
      <!-- 主题 -->
      <el-switch
          v-model="dataTheme"
          inline-prompt
          :active-icon="dayIcon"
          :inactive-icon="darkIcon"
          @change="dataThemeChange"
      />
      <!-- 国际化 -->
      <el-dropdown trigger="click">
        <globalization
            class="hover:text-primary hover:!bg-[transparent] w-[20px] h-[20px] ml-1.5 cursor-pointer outline-none duration-300"
        />
        <template #dropdown>
          <el-dropdown-menu class="translation">
            <el-dropdown-item
                :style="getDropdownItemStyle(locale, 'zh')"
                :class="['dark:!text-white', getDropdownItemClass(locale, 'zh')]"
                @click="translationCh"
            >
              <IconifyIconOffline
                  class="check-zh"
                  v-show="locale === 'zh'"
                  :icon="Check"
              />
              简体中文
            </el-dropdown-item>
            <el-dropdown-item
                :style="getDropdownItemStyle(locale, 'en')"
                :class="['dark:!text-white', getDropdownItemClass(locale, 'en')]"
                @click="translationEn"
            >
              <span class="check-en" v-show="locale === 'en'">
                <IconifyIconOffline :icon="Check" />
              </span>
              English
            </el-dropdown-item>
          </el-dropdown-menu>
        </template>
      </el-dropdown>
    </div>
    <div class="login-container">
      <div class="img">
        <component :is="toRaw(illustration)" />
      </div>
      <div class="login-box">
        <div class="login-form">
          <avatar class="avatar" />
          <Motion>
            <h2 class="outline-none">{{ title }}</h2>
          </Motion>

          <el-form
              ref="ruleFormRef"
              :model="ruleForm"
              :rules="loginRules"
              size="large"
          >
            <Motion :delay="100">
              <el-form-item
                  :rules="[
                  {
                    required: true,
                    message: transformI18n($t('login.usernameReg')),
                    trigger: 'blur'
                  }
                ]"
                  prop="username"
              >
                <el-input
                    clearable
                    v-model="ruleForm.username"
                    :placeholder="t('login.username')"
                    :prefix-icon="useRenderIcon(User)"
                />
              </el-form-item>
            </Motion>

            <Motion :delay="150">
              <el-form-item prop="password">
                <el-input
                    clearable
                    show-password
                    v-model="ruleForm.password"
                    :placeholder="t('login.password')"
                    :prefix-icon="useRenderIcon(Lock)"
                />
              </el-form-item>
            </Motion>

            <Motion :delay="250">
              <el-button
                  class="w-full mt-4"
                  size="default"
                  type="primary"
                  :loading="loading"
                  @click="onLogin(ruleFormRef)"
              >
                {{ t("login.login") }}
              </el-button>
            </Motion>
          </el-form>
        </div>
      </div>
    </div>
  </div>
</template>

<style scoped>
@import url("@/style/login.css");
</style>

<style lang="scss" scoped>
:deep(.el-input-group__append, .el-input-group__prepend) {
  padding: 0;
}

.translation {
  ::v-deep(.el-dropdown-menu__item) {
    padding: 5px 40px;
  }

  .check-zh {
    position: absolute;
    left: 20px;
  }

  .check-en {
    position: absolute;
    left: 20px;
  }
}
</style>
